Section 05 Mineral products 25 Salt; sulphur; earths and stone; plastering materials, lime and cement 25 18 Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or 25 18 20 Calcined or sintered dolomite 25 18 20 00 Calcined or sintered dolomite Commodity Code Description 25 18 20 00 000 Calcined or sintered dolomite